Pipe-coupling.



PATENTED AUG. 27, 1907.

L. V. DELOCHE.

PIPE GOUPLING.

APPLICATION FILED nu 1a, 190e.

Wzww: 40W

To all whom it may concern:

. LOUIS V. DELooHE, or MoNoiIeuililLLA,"PEivnsvilvanIa,`.`

No. en -1,618.

specification of umn maar. t t frandfaugra'iaoar Applloationlled lay18,1906. Borixll'o. 317,817r'111'`i` s f j Be it known that I, LoUIs V. DELocnn,`a citizen of the United States, residing at Mnongahela, in the county of Washington and State of `Pennsylvania, have invented new and useful Improvements in `Pipe- Couplings, of which the following is a specification.

This invention relates to pipe couplings, the object being to provide a simple and effective article vof this -for example, rubber.

My invention can be used wi I advantage in theiconstruction of pipe lines of-any character through which liquid or fluid passes, but the same is applicable par! ticularly for pipe lines for use in mines and other'underground workings Where deflections of such pipe lines are necessary to go over, under or around obstacles.

My invention lobvia'tes -the necessity of employing the ordinary elbows where it is necessary to deflect the pipe from a straight line either upward,'downward, or

laterally.

In the drawing accompanying and forming partA of this` specification I show a form of embodiment of the invention which to enable those skilled in the art to practice said invention will be set forth in detail in the following description, while the novelty o f said invendinarily made from metal.

ness of the stock composing said body. In the opposite ends of the flexible body 2 are fitted tubes as 3 or- The tubes project from the flexible body and terminate at their outer ends in annular rims 4. Between the vopposite ends of the flexible body 2 and the rims 4 are rings as 5 generally made from metal and which surround and slide somewhat freely on the tubes., The rings are slipped over the tubes from the outer ends of the latter and then are` moved along said tubes until they are contiguous or in proximity to the rims 4, following which the tubes are introduced into the open ends of the flexible body 2. -The rims 4 prevent the displacement of the rings 5, while I prefer to employ some positive means lto securely hold the flexible body and tubes in assembled relation.v This means is shown as consisting'of `clamps as surrounding the flexibleibodyizwhere thesarne incloses the tubes yso .flexible body and tubes. The rings 5 abut againstthe opposite ends of the flexible body 2m `It `'is believed that it be understoodthatthere is no threaded relation between the two `rings/:5 and respective tribes 3.' I connectfwith thertwo Yrings 5 ysleevesas 7, these sleeves constituting reallythefheads of the coupling and being of duplicate `co`nstrucrtion` so make them interchangeable; Tlie"sleeves "7 hayebores of.

different diameters, the bores of greater diameter having threads as 8 to fit corresponding threads upon the A exteriors ot the respective rings 5, while the respective j bores of less diameter have threads as 9 to.receive the threaded ends of pipe sections constituting vwith vthe coupling a pipe line. The inner ends of the two sleeves 7 abut against Vannular shoulders as l0 on the inner porf tions of the two rings 5.

-My couplingV can be used in the construction of pipe lines for the conveyance o air, steam, gases, water, oils, and other fluids and liquids.

The flexible body will permit a pipe fitter vor plumber to connect two sections together without the necessity of bringing adjoining pipe sections on a line. coupling can bemade to bend to any angle so as to avoid the necessityo using elbows orthe bending of metallic pipe to go around or over or under obstructions. The flexible body will absorb all vibrations due to the action of pump and other apparatus employed for forcing fluid or liquidthrough pipe lines; it will also takeup the vibration caused by the velocity of the liquid or fluid through `the pipe line: Under present conditions the threads of a coupling vand the flanges of the union thereof are quickly destroyed by these vibrations. By virtue of my invention this difficulty is overcome. A pipe line involvingmy joint can be easily and quickly laid. By the coupling I avoid the friction which takes place by the use of ordinary metallic elbows .and I can also make large, long bends so as to reduce the power necessary for forcing fluid or liquid through the pipe line.

The shoulders l() are preferably shaped for coperation with a suitable wrench which -may be one of the ordinary character or a spanner wrench. I prefer to The pipe make the said shoulders l0 of polygonal iorm for such are then independently screwed onto the adjacent ends of pipe sections forming part of a pipeline. The pipe 'sections should extend `int0-the sleeve 7 to the. place where the rim 4 is shown as located. The rings 5 are thou screwed into the sleeves until the rims 4 abut against. the said pipe sections to provide under ordinary Conditions a water-tight joint. When the two joints are made the rims 4 will abut against the pipe sections and the rings 5 will abut against said rims. In, some cases I may place' gaskets of rubber or other suitable material within the rings 5 and aroundthe tubes 3, although ordinarily this will not be necessary.

Whatl claim is: Y

l. A pipe coupling comprising a tubular body, atube iitted in and projecting from said tubular body, said tube terminating at its outer end in an annular rim` a ring slidahie on said tube wholly between the tubular body and said rim. said ring beingr externally threaded. internally plain and of equal internal diameter throughoutits length. and a sleeve inclosing said rim and threaded to engage the threads on said ring, said sleeve having an internally threaded portion of less diameter than said rim, against which the latter substantially abuts and the ring having un external polygonal flange at its inner end of greater diameter than and to substantially abut against the inner end of said sleeve.

2. A pipe `coupiing comprising a tubular body, a tube itted in and projecting from said tubular body, said tube terminating :it its outer end in an annular rim and being of :l uniform internal diameter and a uniform external diameter except at said rim. a ring slidable on said tube wholly between the tubular body and said rim, said ring being e'\'ternaiiy threaded, internally plain, and of equal internal diameter throughout its length, a. sleeve inclosing said rim and threaded to engage thethreads of said ring, said sleeve having an internally threaded portion ot less diameter than said rim, against which the latter substam tiailynbuts and the ring having,r an external polygonal flange at its inner end of greater diameter than and to substantially abut against the inner end of said sleeve, and a clip surrounding said tubularl body and tube to iirmiy clamp the same together.

ln testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

Louis v. DELocHn.

Witnesses .Luiss D. STlfzvnNsoN, WALTER WALLACE. 

